<HTML><HEAD><TITLE>SAGDP1 Footnotes</TITLE><STYLE>UL{text-indent:-1em;list-style-type:none;list-style-image:none;} LI{padding-bottom: 0.25em;} BODY{margin:1in;}</STYLE></HEAD><BODY>
<DIV>SAGDP1 Footnotes</DIV><DIV><UL>

<LI> &nbsp;Real GDP is in millions of chained 2012 dollars. Calculations are performed on unrounded data. Chained (2012) dollar series are calculated as the product of the chain-type quantity index and the 2012 current-dollar value of the corresponding series, divided by 100. Because the formula for the chain-type quantity indexes uses weights of more than one period, the corresponding chained-dollar estimates are usually not additive. The difference between the United States and sum-of-states reflects federal military and civilian activity located overseas, as well as the differences in source data used to estimate GDP by industry and the expenditures measure of real GDP.</LI>
<LI>(NA)&nbsp;Not available.</LI>
<LI> &nbsp;Last updated: March 31, 2022-- preliminary statistics for 2021.</LI>
</UL></DIV><DIV> Source: Department of Commerce / Bureau of Economic Analysis / Regional Economic Accounts</DIV></BODY></HTML>
